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发明名称
Shut-off valve
摘要
申请公布号
US2769912(A)
申请公布日期
1956.11.06
申请号
US19540422586
申请日期
1954.04.12
申请人
PHILLIPS PETROLEUM COMPANY
发明人
LUPFER DALE E.;BROERMAN ARTHUR B.
分类号
F16K17/00
主分类号
F16K17/00
代理机构
代理人
主权项
地址
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